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bazarr/libs/js2py/host/jsfunctions.py

176 lines
3 KiB
Python

from ..base import *
from six.moves.urllib.parse import quote, unquote
RADIX_CHARS = {
'1': 1,
'0': 0,
'3': 3,
'2': 2,
'5': 5,
'4': 4,
'7': 7,
'6': 6,
'9': 9,
'8': 8,
'a': 10,
'c': 12,
'b': 11,
'e': 14,
'd': 13,
'g': 16,
'f': 15,
'i': 18,
'h': 17,
'k': 20,
'j': 19,
'm': 22,
'l': 21,
'o': 24,
'n': 23,
'q': 26,
'p': 25,
's': 28,
'r': 27,
'u': 30,
't': 29,
'w': 32,
'v': 31,
'y': 34,
'x': 33,
'z': 35,
'A': 10,
'C': 12,
'B': 11,
'E': 14,
'D': 13,
'G': 16,
'F': 15,
'I': 18,
'H': 17,
'K': 20,
'J': 19,
'M': 22,
'L': 21,
'O': 24,
'N': 23,
'Q': 26,
'P': 25,
'S': 28,
'R': 27,
'U': 30,
'T': 29,
'W': 32,
'V': 31,
'Y': 34,
'X': 33,
'Z': 35
}
@Js
def parseInt(string, radix):
string = string.to_string().value.lstrip()
sign = 1
if string and string[0] in ('+', '-'):
if string[0] == '-':
sign = -1
string = string[1:]
r = radix.to_int32()
strip_prefix = True
if r:
if r < 2 or r > 36:
return NaN
if r != 16:
strip_prefix = False
else:
r = 10
if strip_prefix:
if len(string) >= 2 and string[:2] in ('0x', '0X'):
string = string[2:]
r = 16
n = 0
num = 0
while n < len(string):
cand = RADIX_CHARS.get(string[n])
if cand is None or not cand < r:
break
num = cand + num * r
n += 1
if not n:
return NaN
return sign * num
@Js
def parseFloat(string):
string = string.to_string().value.strip()
sign = 1
if string and string[0] in ('+', '-'):
if string[0] == '-':
sign = -1
string = string[1:]
num = None
length = 1
max_len = None
failed = 0
while length <= len(string):
try:
num = float(string[:length])
max_len = length
failed = 0
except:
failed += 1
if failed > 4: # cant be a number anymore
break
length += 1
if num is None:
return NaN
return sign * float(string[:max_len])
@Js
def isNaN(number):
if number.to_number().is_nan():
return true
return false
@Js
def isFinite(number):
num = number.to_number()
if num.is_nan() or num.is_infinity():
return false
return true
# todo test them properly
@Js
def escape(text):
return quote(text.to_string().value)
@Js
def unescape(text):
return unquote(text.to_string().value)
@Js
def encodeURI(text):
return quote(text.to_string().value, safe='~@#$&()*!+=:;,.?/\'')
@Js
def decodeURI(text):
return unquote(text.to_string().value)
@Js
def encodeURIComponent(text):
return quote(text.to_string().value, safe='~()*!.\'')
@Js
def decodeURIComponent(text):
return unquote(text.to_string().value)